Watch List notes:

Koinon of Pontus. Polemo II, with Britannicus(?). A.D. 38-64. AR drachm (18.5 mm, 3.21 g, 6 h). Dated RY 19 (A.D. 56/57). BACIΛЄ C ΠΟΛЄΜ ΝΟC, diademed head of Polemo II right / ЄΤΟVC IΘ, laureate and draped bust of Britannicus (?) right. RPC I 3838; Rec Gen 36. VF, scratches, minor roughness. Very rare, six specimens cited by RPC.

The identity of the male portrait on the reverse of this rare issue is not certain, but it has been proposed to be Britannicus, son of Claudius and Messalina, who died in February A.D. 55, early in Nero's reign